feat: add time zone configuration applet to System Configuration

scripts/copy_icons.sh

@@ -52,6 +52,7 @@ ICONS=(
     "apps/scalable/system-file-manager.svg"
     "apps/scalable/preferences-desktop-apps.svg"
     "categories/scalable/preferences-system.svg"
+    "categories/scalable/preferences-system-time.svg"
     "apps/scalable/accessories-calculator.svg"
     "apps/scalable/web-browser.svg"
     "places/scalable/folder.svg"